Cybercriminals breach Aflac as part of hacking spree against U.S. insurance industry

Cybercriminals have breached insurance giant Aflac, potentially stealing Social Security numbers, insurance claims and health information, the company said Friday, the latest in a spree of hacks against the insurance industry.

With billions of dollars in annual revenue and tens of millions of customers, Aflac is the biggest victim yet in the ongoing digital assault on US insurance companies that has the industry on edge and the FBI and private cyber experts scrambling to contain the fallout.

Erie Insurance and Philadelphia Insurance Companies have also reported hacks this month, which in those cases have caused widespread disruptions to IT systems used to serve customers. All three insurance-company hacks are consistent with the techniques of a young and rampant cybercrime group known as Scattered Spider, people familiar the investigation tell CNN.